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Application filedfiledCritical
Priority to JP1989017745UpriorityCriticalpatent/JPH083149Y2/ja
Priority to US07/479,149prioritypatent/US5019767A/en
Priority to EP90301544Aprioritypatent/EP0383559B1/en
Priority to DE69016221Tprioritypatent/DE69016221T2/de
Priority to CA002010066Aprioritypatent/CA2010066C/en
Priority to CN90201803Uprioritypatent/CN2063715U/zh
Publication of JPH02110948UpublicationCriticalpatent/JPH02110948U/ja
Application grantedgrantedCritical
Publication of JPH083149Y2publicationCriticalpatent/JPH083149Y2/ja